I just had my engine rebuilt and internally balanced. My clutch (Centerforce DF, I know, I know...) was slipping before the rebuild but I decided to see if I could hold out on it. I had my flywheel resurfaced, but used the stock flywheel.

So, the problem is that I get huge vibrations when I slip the clutch around 2-3k. Since I had the rotating assembly internally balanced, could there be an imbalance from the previously balanced flywheel? Or is my clutch just sucking?

I am thinking that I'm making about 350 RWHP with my setup, if that makes any difference.

Any help would be greatly appreciated.

 

vibrations on the whole car, or just the tranny? Could be the tranny mount is shot, they're cheap and easy to replace.

 

It's coming from the engine/tranny, but its so violent it shakes the whole car.

The trans mount was fine when I had everything apart, and it never did this before the rebuild.

 

Going on a limb here but.... pilot bushing/bearing.

 

sounds like a little bit of chatter. prolly since you had the fly wheel surfaced. My stage 3 will do the same thing. it vibrates so bad when you try to slip the clutch, the pass. seat will move back and forth. Drop it a few good times at the track, it will go away